Hey guys,
Working on a weird problem. My HVAC works fine in all positions however I have no fan at all when the mode switch is on Heater or Vent. Everything works normally. I pulled the mode switch out and disassembled it completely. Cleaned all the metal contacts and re-lubed the rubber maze. I confirmed the three wires that connect to the switch are in place and in the correct positions. Since it appears the mode switch feeds the fan switch directly, I guess there must be a problem with the mode switch. I'll put it out again and check it with a meter but has anyone seen this and is there another part of the puzzle I'm overlooking?